Vulnerability scans aren't about finding the obvious things like that. Everyone knows that Trump has had failed marriages and has cheated on his wives.
Vulnerability scans are about digging deep into the really dark shit that isn't currently known but could be brought to light and used against the candidate. Things like the "grab em by the pussy" tape for example. You can't tell me that the people on his staff wouldn't have liked to know about that before it was being shown on every News Program in the world. Or The RNC for that matter.